You really need to find a good guide for memory timings... I know there's gotta be one around somewhere. Without a guide, you really should mess with it more than you have to... Also, there's secondary timings that aren't typically shown which also need to be tweaked.
Why do they need to be tweaked? They have like zero impact on performance. Just leave them on auto, only tweak the first four ones, like 5-5-5-15.
Not sure why I never thought of this before, but you should look into dropping your multiplier and increasing your bus speed to increase your performance... Right now you're running 378MHz FSB @ 9x multiplier. Try dropping your multiplier down to 8x, and increasing the FSB to 426MHz. Or if your motherboard will run it, drop the multiplier down to 7x, and increase the FSB up to 487MHz. With an 8x multi instead of 9, you'll gain 6MHz total speed, and with a 7x multi instead of 9, you'll gain 7MHz total speed. Total processor difference shouldn't affect anything with your CPU, so all you really need to change is your FSB speed and your multiplier. Also, mm vr is correct... Looked into memory timings yesterday, the primary latencies are the only ones with any real world effect on performance.
I always thought lowering the multiplier will slow down the CPU performance? At the same time I did notice that the RAM speed was getting higher when I lowered the multiplier, I am going to try this right now. BTW my CPU will stay at 3.4GHz correct? Or does the multiplier have nothing to do with the clock speed of the CPu?
The multiplier will drop the CPU speed, if the FSB speed isn't raised to make up for it. CPU will stay at 3.4GHz with either of my above suggestions. The total CPU speed is the FSB multplied by the multiplier. Upping the FSB will also help make your high dollar RAM more useful.
basically: CPU speed = FSB speed (around 300, 500 for top end) * CPU multiplier RAM speed = FSB speed * RAM ratio (1:1, 4:3) * 2 so, if you want your RAM to be faster while synced, but think CPU is already running maxed out, raise FSB speed and drop CPU multiplier will give you a boost for the system without pushing the CPU over the top. (i hope this is hat JaredC01 is saying) edited, thanks for reminding, JaredC01
Aww man this sucks, I got 8.0 Multiplier X 425 FSB = 850MHz of RAM seep but I had to up my timings from 4-4-4-12 to 5-5-5-15 or for some reason my computer will not even sent a signal to my monitor when I restart after overclocking...
If it won't post, then there's something you probably need to change. You may have to take out your OCZ and adjust the timings and voltage on the RAM to get it to post properly.
There's a good possibility of that being the case... Try it with just the Dominator and see what happens.
why did you go cheap on 2 sticks of RAM?? it's always better to pair all 4 sticks for maximum overclock. i had OCZ Platinum that can't hit 850Mhz, but my current 4 sticks of Corsair XMS2 800Mhz can hit over 900Mhz with its advertised stock timing of 5-5-5-18.
Alright I'm gonna give it a go and see what happens if I only use the Corsair Dominators PC2-8500, is it possible for these Corsair's to reach 1137MHz with a timing of 4-4-4-12? Last time I tried my monitor wouldn't get any signal.
Lol hahah ya I know I should of gone with PC2-8500 in the first place. The story goes this way, I buy a prebuilt computer HP M9040N wasn't satisfied with it so I upgrade the RAM from PC2-5400 to PC2 6400 2GB 2X1GB, after a month or two I wanted to upgrade my ram some more so I buy a PC2-6400 4GB Duel kit 2x2GB and realized that my motherboard would accept it so I just trashed the PC2 6400 2x1 GB and kept the 4GB duel kit. After 4 months I get tired of the whole thing and by a new case, RAM PC2-8500, GPU, PSU, CPU Cooler Cooler...etc and everything I should of just built a computer in the first place I would of saved so much money.
same here, just spend a little bit more or save a little big longer and save a LOT of money in the long run. my memory with this computer went like this: 2x1GB -> 4x1GB (realised not enough) -> 2x1GB + 2x2GB (realised it is bad for overclock) -> 4x2GB of all matched stuff.
Okay so I just took the OCZ-PC2 6400 out and left the Corsairs in, suprisingly it booted up my PC and monitor, the one problem is my FSBRAM ration are not 1:1 but 3:4... And I think the DRAM Frequancy is a little high @ 566.7. http://img8.imageshack.us/my.php?image=33849876zs4.jpg Is there a way I can make the FSBRAM 1:1?
Yes, assuming the RAM is DDR2, drop the RAM multiplier (aka G(MCH) ) to 2.00 This will allow your RAM to run at 1:1 with the FSB. However, this means to have greater MHz RAM, you will have to up the FSB. If you have a choice of A, B, C, or D strappings, (the last character in the multiplier, if available) go for D as you're running at 400MHz or greater FSB.
Alright so I'm using only the Corsair PC2-8500 and I got it to work at its native 1066MHz but why is my FSBRAM ratio 4:5 now? The weird thing is I ran IntelBurnTest and I passes it. Is it important to have your FSBRAM ratio 1:1?
As I said before, you DO NOT have to run your RAM at 1:1 with your FSB, though there is latency introduced when you don't (some argue otherwise, blah blah). Quite a few people will buy higher rated memory, and underclock it so that it's at 1:1 with the FSB, with tighter timings. The higher you can get your FSB to, the better the performance. That's the reason I suggested a higher FSB with a lower multiplier in my earlier post.
